AWS Certified Cloud Practitioner (CLF-C02) — Question 695

A company needs to provision uninterruptible Amazon EC2 instances, when needed, and pay for compute capacity by the second.

Which EC2 instance purchasing option will meet these requirements?

Answer options

Correct answer: C

Explanation

On-Demand Instances allow you to pay for compute capacity by the second with no long-term commitments, and they are uninterruptible by AWS, making them ideal for unpredictable, spiky workloads. Spot Instances can be interrupted by AWS when capacity is needed elsewhere, while Reserved Instances require a one- or three-year commitment. Dedicated Instances run on physical servers dedicated to a single customer and are not required to meet this basic billing and continuity requirement.